Woot offers ABMAT Landmine Grip Improve Your Grip and Protect Your Hands During Landmine Exercises for $7.20 (reg. $39.97) free shipping with Prime. 

Product Description: 
We developed the Landmine Grip with Jessie (inventor of Breath Belt). As a former Professional Football Player Jessie understands the importance of smart and safe training. Jessie knows the effectiveness of landmine training and after speaking with dozens of professional strength and conditioning coaches and professional athletes knew something was missing. A safe, comfortable, convenient grip to attach to the end of a barbell for landmine exercises – a.k.a. the Landmine Grip.